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Navigating Your Way to Proper Tool Selection
GUHRING has marked its Standard Tap Series with color rings to help you quickly and confidently choose the correct tool for your job. Each ring relates to the unique machining behaviors of different materials as dictated by their type and condition. The role of material type and condition in selecting the proper tap for each application cannot beoverstated. So how do you use the GUHRING Tap Compass™ to find your way to improved tapping performance? • The GUHRING Tap Compass™ lists a wide range of workpiece materials by type and condition, and identifies a “Recommended” and “Alternate” color ring for each group. Just find your material, and you will find your ring. • Once you know the optimum color ring for your material, you will need to answer 3quick questions to pinpoint your route to the proper tool: What type of hole are you tapping? Through hole or Blind hole. What type of thread do you need? UNC, UNF, M or MF. What tool standard do you require? ANSI or DIN. • With your answers in hand, you are ready to navigate to your color ring’s Series pages and find the exact style and size of tap you need for your job. It’s that easy! The TapCompass begins on page 14. On the entry pages for each color ring section you will find the recommended tapping speeds for your job – again specified by material type and condition. In the technical section of the catalog you will also find a broad overview of potential speeds for both cut and form taps. Please note: each application presents many variables - we have done our best to provide speedsbased on our tool geometry for the average application. For additional information about Guhring threading products or any of our other families of high-performance cutting tools, visit www.guhring.com or contact us directly at (800) 776-6170.

General Purpose

Alloyed & Unalloyed Steels

Stainless Steels

High Tensile, Tool Steels

Cast Iron

Aluminum and Alloys

Titanium or NickelContents

GENERAL INFORMATION

CUT TAPS

STI TAPS FORM TAPS

TECHNICAL INFORMATION

GUHRING NO. APPENDIX

Through hole taps
Series UNC 3901 Index 3961 873 878 UNF 3902 3962 908 METRIC 3900 3960 803 815
Metric Metric Metric Metric 6H 6H ISO 2 (6H) ISO 2 (6H) ANSI ANSI DIN 371 DIN 376 B B B B Cobalt Cobalt Cobalt Cobalt bright finish MolyGlide® bright finish bright finish 28 28 2829 UNF UNF UNF 2B 2B 2B ANSI ANSI DIN 374 B B B Cobalt Cobalt Cobalt bright finish MolyGlide® bright finish 27 27 27 UNC UNC UNC UNC 2B 2B 2B 2B ANSI ANSI DIN 371 DIN 376 B B B B Cobalt Cobalt Cobalt Cobalt bright finish MolyGlide® bright finish bright finish 26 26 26 26 ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No.

METRIC FINE 827 830 UNC 3913 3916 3946 28812883
UNC UNC UNC UNC UNC 2B 2B 2B 2B 2B ANSI ANSI ANSI DIN 371 DIN 376 B B B B B Cobalt Cobalt Cobalt Cobalt Cobalt bright finish TiN coated TiCN coated oxide finish oxide finish 38 38 38 38 38 Metric Fine Metric Fine ISO 2 (6H) ISO 2 (6H) DIN 374 DIN 374 B C Cobalt Cobalt bright finish bright finish 30 31

2

General Purpose

Alloyed & Unalloyed Steels

Stainless Steels

High Tensile,Tool Steels

Cast Iron

Aluminum and Alloys

Titanium or Nickel

For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog

Through hole taps
Series UNF 3914 3917 3947 2885 METRIC 3912 3915 3945 2876
Metric Metric Metric Metric 6H 6H 6H 6H ANSI ANSI ANSI DIN 371 B B B B Cobalt Cobalt CobaltCobalt bright finish TiN coated TiCN coated oxide finish 40 40 40 40 UNF UNF UNF UNF 2B 2B 2B 2B ANSI ANSI ANSI DIN 374 B B B B Cobalt Cobalt Cobalt Cobalt bright finish TiN coated TiCN coated oxide finish 39 ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No.

Index

39 39 39

METRIC FINE 3973 2879
Metric Fine Metric Fine 6H ISO 2 (6H) ANSI DIN 374 B B Cobalt...